Polymethylene
n. [化]聚亞甲基
??? 情景例句
You know, when I was your age,
要知道 ，當我像你這么大的時候，
I've got a headache.
我頭痛。
Oh, that's quite early! Where are we going to meet?
噢，那很早！我們打算在哪兒會合？